Electronic cigarette



FIG. 1 is a perspective view of an electronic cigarette, showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the electronic cigarette that form no part of the claimed design. 

CLAIM We claim the ornamental design for an electronic cigarette, as shown and described. 